| Name : perl-Acme-Steganography-Image-Png
| |
| Version : 0.06
| Vendor : obs://build_opensuse_org/devel:languages:perl
|
| Release : 8.47
| Date : 2024-08-05 20:14:11
|
| Group : Development/Libraries/Perl
| Source RPM : perl-Acme-Steganography-Image-Png-0.06-8.47.src.rpm
|
| Size : 0.01 MB
| |
| Packager : (none)
| |
| Summary : Hide data (badly) in Png images
|
Description :
Acme::Steganography::Image::Png is extremely ineffective at hiding your
secrets inside Png images.
There are 4 implementations
* Acme::Steganography::Image::Png::FlashingNeonSignGrey
Blatantly stuffs your data into greyscale PNG files with absolutely no
attempt to hide it.
* Acme::Steganography::Image::Png::RGB::556
Stuffs your data into a sample image, using the low order bits of each
colour. 2 bytes of your data are stored in each pixel, 5 bits in Red and
Green, 6 in Blue. It produces a rather grainy image.
* Acme::Steganography::Image::Png::RGB::323
Also stuffs your data into a sample image, using the low order bits of each
colour. Only 1 byte of your data is stored in each pixel, 3 bits in Red and
Blue, 2 in Green. To the untrained eye the image looks good. But the fact
that it\'s PNG will make anyone suspicious about the contents.
* Acme::Steganography::Image::Png::RGB::556FS
Stuffs your data into a sample image, using the low order bits of each
colour. 2 bytes of your data are stored in each pixel, 5 bits in Red and
Green, 6 in Blue. Changing the value of pixels to store data is adding
error to the image, in this case rather a lot of error. To attempt to
conceal some of the graininess Floyd-Steinberg dithering is used to spread
the errors around. It\'s not perfect, but effects are quite interesting,
producing a reasonably nice dithered image.
Write your data out by calling \'write_images\'
Read your data back in by calling \'read_files\'
You don\'t have to return the filenames in the correct order.
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RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/perl:/CPAN-A/openSUSE_Tumbleweed/noarch |
